1. Redmine
   1. Project
   2. Tickets
   3. Versions
   4. Deals
   5. Invoce
   6. API
2. PHP5
   1. CMS
      1. WordPress
      2. Joomla
   2. Framework
      1. CodeIgniter
      2. FuelPHP
      3. Yii
      4. Symfony2
   3. Tepmlate Engine
      1. Smarty3
      2. Twig
   4. Affecting PHP's Behaviour
      1. APC
   5. Cryptography Extensions
      1. Mcrypt
      2. OpenSSL
   6. Database Extensions
      1. Abstraction Layers
      2. Vendor Specific Database Extensions
   7. Date and Time Related Extensions
      1. Date/Time
   8. File System Related Extensions
      1. Fileinfo
      2. Filesystem
      3. Mimetype
   9. Human Language and Character Encoding Support
      1. Multibyte String
   10. Image Processing and Generation
       1. GD
       2. ImageMagick
   11. Mail Related Extensions
       1. IMAP
       2. Mail
   12. Other Basic Extensions
       1. GeoIP
       2. JSON
       3. SPL
          1. Datastructures
          2. Iterators
          3. Interfaces
          4. Exceptions
          5. SPL Functions
          6. File Handling
          7. Miscellaneous Classes and Interfaces
       4. SPL Types
   13. Other Services
       1. cURL
       2. Memcached
   14. Search Engine Extensions
       1. Sphinx
   15. Server Specific Extensions
       1. Apache
       2. FastCGI Process Manager
   16. Session Extensions
       1. Sessions
   17. Text Processing
       1. PCRE
       2. Strings
   18. Variable and Type Related Extensions
       1. Reflection
   19. Web Services
       1. OAuth2
       2. SOAP
       3. RPC
       4. Composer
   20. XML Manipulation
       1. DOM
       2. SimpleXML
   21. Classes and Objects
       1. The Basics
       2. Properties
       3. Class Constants
       4. Autoloading Classes
       5. Constructors and Destructors
       6. Visibility
       7. Object Inheritance
       8. Scope Resolution Operator (::)
       9. Static Keyword
       10. Class Abstraction
       11. Object Interfaces
       12. Traits
       13. Overloading
       14. Object Iteration
       15. Magic Methods
       16. Final Keyword
       17. Object Cloning
       18. Comparing Objects
       19. Type Hinting
       20. Late Static Bindings
       21. Objects and references
       22. Object Serialization
   22. Namespaces
   23. Exceptions
   24. Generators
   25. Patterns
   26. Payment System
       1. PayPal
       2. Webmoney
       3. Robokassa
       4. Bank transfer
3. Database
   1. Common
      1. Connect
      2. Export/Import
   2. DBMS
      1. MySQL
         1. Indexes
            1. Foreign Keys
            2. PRIMARY KEY
            3. UNIQUE
            4. INDEX
            5. FULLTEXT
         2. Storage Engines
            1. MyISAM
            2. InnoDB
            3. HEAP
         3. Interfaces
            1. PhpMyAdmin (web)
            2. Sequel Pro (mac os)
      2. PostgreSQL
   3. Data types
   4. Join
   5. Subquery
   6. VIEW
   7. PARTITION
4. git
   1. files
      1. .gitignore
      2. .gitkeep
   2. commands
      1. common
         1. init
         2. add
         3. commit
         4. pull
         5. push
      2. additional
         1. checkout
         2. branch
         3. reset
   3. gitlab
      1. API
   4. git-flow
   5. submodule
5. Python
6. Java
7. Javascript
   1. Libraries
      1. jQuery
         1. plugins
            1. validate
            2. fancybox
            3. form
            4. file upload
         2. api
      2. jQueryUI
         1. Interactions
            1. Draggable
            2. Droppable
            3. Resizable
            4. Selectable
            5. Sortable
         2. Widgets
            1. Accordion
            2. Autocomplete
            3. Button
            4. Datepicker
            5. Dialog
            6. Menu
            7. Progressbar
            8. Slider
            9. Spinner
            10. Tabs
            11. Tooltip
         3. Effects
            1. Effect
            2. Visibility
            3. Class Animation
            4. Color Animation
         4. Utilities
            1. Position
            2. Widget Factory
      3. Underscore
      4. Prototype
      5. Moontools
      6. ExtJS
   2. native
   3. canvas
8. Ruby
   1. ROR
9. *NIX
   1. bash
      1. Common commands
      2. editors
   2. apache
      1. logs
      2. virtualhost
      3. .htaccess
      4. .htpasswd
   3. php-fpm
      1. pool
   4. nginx
      1. logs
      2. virtualhost
      3. nginx.conf
   5. crontab
   6. mod-php
      1. php.ini
      2. logs
10. Nodejs
11. CSS
    1. Versions
       1. CSS2
       2. CSS3
    2. Preprocessors
       1. Sass
       2. LESS
       3. Stylus
    3. Validation
    4. Frameworks
       1. Twitter Bootstrap
       2. 1140 CSS Grid
       3. Skeleton
       4. Frameless Grid
       5. Foundation 3
       6. Kube
    5. Technology
       1. Adaptive/Responsive
       2. Sprite
12. HTML
    1. Versions
       1. HTML4.01
       2. HTML5
       3. XHTML1.x
    2. DOCTYPE
    3. Validation
13. SSH
    1. Commands
       1. scp
       2. rsync
14. FTP
    1. Programms
       1. FilleZilla